Keep Transition effect after removing the cursor - html

Question

I need to change the background-color from red to transparent.
This change should occur when I hover over a div.
The reason is why I need it transparent is so I can show an absolute positioned div under the main div, in other words, when I hover over the parent div, I need to show the child div.
When I move away the cursor from this div, I don't want a reverse-transition, I want the background to stay transparent, I want the blue div to always be there after I move away the cursor.
Since I need a PURE CSS solution (No JS/JQuery), I came into the CSS3 Transition.
<div id="parent">
<div id="child">
</div>
</div>
This is a fiddle (Firefox).
#parent
{
background:red;
-moz-transition:background 1s;
}
#parent:hover
{
background:transparent;
}
I thought about doing this with animation, since I can fake this by giving it a temporary duration to stay transparent, for example.
0% {background:red;}
1% {background:transparent;}
100% {background:transparent;}
But then animation will stop when I move the cursor away.
Note: This may sound ridiculous or stupid, but my intention is bigger than this, this is just one small example.

Answer 1

Take a look at the transition-delay property.
#parent { transition-delay:999999s; }
#parent:hover { transition-delay:0s; }
Fiddle
This way, the hover animation will happen instantly (0s) while the transition to the initial state will only happen after 277 hours without leaving the page. You can increase the value a bit further if necessary, though I believe this value is enough for a real world page. =]

Answer 2

I don't think it's possible with pure CSS. As a compromise you can use JavaScript to add a class to the element and then handle all visuals with CSS.
http://jsfiddle.net/ZvcgP/1/
HTML
<div class="effect">Hover me</div>
CSS
.effect {
background-color: red;
-webkit-transition:background 1s;
transition:background 1s;
}
.effect.anim-done {
background-color: transparent;
}
JS
$('.effect').mouseenter(function () {
$(this).addClass('anim-done');
});

Answer 3

use below code to transiton from red to transparent. and please change 'object' to the class of your object
.object {
background-color: red;
-webkit-transition:background-color 1s linear; /* for webkit supported browsers */
-moz-transition:background-color 1s linear; /* for old mozilla browsers */
-o-transition:background-color 1s linear; /* for opera browsers */
transition:background-color 1s linear; /* for css3 supported browsers */
}
.object:hover {
background-color: transparent;
}